Process of separating ores, &amp;c.



tially of cheaply of a carbonate v or in combination with the silicate of an 25. s iduum,

- agitator provided with an outlet 7 4 residuum oil and 300lbs. lbs. of soda ash was added copper was agitated wit 'in such water by the v metal in combination if desired with a. sili "Qcate of analkali' metal tobe easilylg incorporated with oil. Magnetite as recovered. in

-, present practice from the metalliferousjpar- I NIT D sr frns PATENT 0mm.

' ALFRED ARTHUR. Locxwoon, or nonnon, ENGLAND, ASSIGNOR TO m'unnx iiaenn'r c COMPANY, LIMITED, OF LONDON, ENG-LAND.

PROCESS OF SEPARATING ORES, I

1,04i851. No Drawing.

1'0 allwhom'tt may concern:

7 Be it known that I,'ALFRED ARTHUR LooK- woon, a subject of the King of. Great Britain, residing at Baltic House, 27 Le'adenhall 5 street, in the city of London, England, have lnvented new and useful Improvements in Processes of Separating Ores, &c., of which [the followingis "a specification.

' This invention has for its object improve 10 ments in or relating to .the separation of oxid, carbonate, 'sul d V lik V e. According to this invention ores whose metallic constituents consist wholly or paroxids or carbonates are easily and coated with magnetite to the exclusion of the gangue by means of an oily liquid in the presence of water by adding at some stage of the process a small quantity of an alkali metal either alone alkali metal. While substantially any oily liquid can be employed, preferably the cheap hydrocarbon residuums such a as Borneo reetc., are employedjn practice. I

Example I:-'-10, O00 lbs. of a copper carbonate, copper silicate and copper glance ore in a quartzite gangue assaying 4.6% 30 copper was susp nded in an equal'weight of water'and gradually fed into a horizontal together with'a paint composedof l50zlbs. of'Texas of magnetite; 31

to the water.

Example II: Anrore consisting 0f carbonate and silicate of copper in a quartzite 7.3%.

and white slate an e and assa in g Iiir about one haIf hour 1 oz. of soda ash and 100 lbs. ofa 2.5 Baum'silicate of sodasolution and consisting of a mixture of 1.6 lbs. Texas residuum oiland 3.2 lbs. of magnetite. gAn extraction of 82% copper was obtained. As magnetite is really an example of an oxidized ore and is intended to be included term) this invention enables ma has been previously wetted with netite which ald of a carbonate of an alkali ticles til Which is attached is admixed with Specification of Letters Patent. Application filed, Apri1 29, 912 Serial Nd. 693,991.

or other ores or the.

Texas residuum, or tar, creosote,

a paint I Patented Nov. 12, 1912.

water and hitherto it has been necessary to evaporate the occluded water. It can now be incorporated with, an oil as follows:

Example III: To th is added 1 oz.'to 5 oz.-of soda ash for every 100 lbs. of water. By ing a magnetic paintcan be made.

In all these examples it is to be understood that the water employed is a neutralwater. Although it is usual to-form the magnetic paint by mixing dry magnetite with oil, and suchhas been described in the examples'it follows from the result of Example III that when treating anore, whether sulfid or other, it is not necessary previously to mix the magnetite withthe oil, but ill while w'etted wit' together with the ore and th oil also discovered that the additidii'of such carbonate in combination if desired with such silicate allows oxidized ores to be easily separated from their gangue by :a so-called flotation process, although therecovery of the values need notnec'essarily take place by actual flotation. Q. a

Example IV: 50 lbs. of an oxid and carbonate of copper ore inlaquartzite gangue, assaying 4.2% i 1 0 of oil made up (if- 3 partsmineral residuum-oil and 1 part "cot ton seed.oil, together with 1 oz. of soda in 54 lbs.

agitated water. This was then subadding oil and agitat as ess s I have soda-ash and 2 lbs. silicate e magnetite and water i jected to. the ordinary hot acid water fiotation process, an extraction of 75% copper being obtained without the copper dissolved.

at I claim is ,s 1. In the treatment of an one the process which consists in treatingan oxidized ore with an oily liquid andwater; aiding the oiling of the metalliferous contents of the ore by treatment with a carbonate of an alkaline metal and separating the oiled constituents from the unoiled constituents.

2. In the treatment of an ore the process whichconsists in treating an oxidized ore with an oily liquid and water and with a carbonate of an alkali metal in combination with the silicate of an alkali metal to aid the qoiling'of the metalliferous contents-of the ore and separating -the oiled constituents from the unoiled constituents.

3. In the treatment of an ore the process ,which consists in treating the ore with a taking into account magnetic substance, water,

and with a carbonate of an alkali metal and magnetically separating the mixture.

4- In the treatment of an ore the process 5 which consists in treating the ore with a magnetic substance, water, an oily liquid and with a carbonate of an alkali metal in v combination with the silicate of an alkali metal and magnetically separating the mix 10 ture.

an oily liquid 5. In the treatment of an ore the process which consists in treating the ore and magnetite by agitating them while mixed with water with an oily liquid in the presence of a carbonate of an alkali metal and magnet- 15 ically separating the mixture.

ALFRED ARTHUR LOCKWVOOD.

VVitnessesz I \N LFRED CARPMAEL,

HAROLD I'IARRY ANDERSON. 

